Navigation · Inertial navigation (INS / IMU)
SADRA inertial navigation system
Also recorded as SADRA and SADRA MIN 800
The inertial navigation unit found in Geran-2, Geran-3 and Geran-4 drones: it keeps the drone on course from its own motion sensors when satellite signals are jammed. HUR files early units as Iranian-made and later ones as Russian.
- Found in
- 3 weapons, 4 recovered units on record
- Photos
- 7
Photos
Inertial navigation system (IMU) SADRA MIN 800 — Geran-2
Inertial navigation system (IMU) SADRA MIN 800 — Geran-2
Inertial navigation system unit SADRA — Geran-2
Inertial navigation system unit SADRA — Geran-2
Inertial navigation system unit SADRA — Geran-2
SADRA Inertial navigation system — Geran-3
Inertial navigation system SADRA — Geran-4
Photo: HUR War & Sanctions
SADRA is the inertial navigation unit of the Geran line: accelerometers and gyroscopes that track the drone’s own motion, so it can hold its course when satellite signals are jammed. HUR War & Sanctions describes it as a “platform-free” (strapdown) system and has recorded it in Geran-2, Geran-3 and Geran-4 drones.
HUR filed a June 2025 unit as Iranian and a January 2026 unit, marked SADRA MIN 800, as Russian. Since autumn 2026 the Geran-4 pairs it with the DISMAG compass module, which HUR says reduces its gyroscope drift. The Geran-5’s MINSOO V3 is, in HUR’s words, “probably” of the SADRA type.
Specifications
Each figure names its source. A maker's figure is the maker's claim; nothing here was measured by us.
| Type | Strapdown (platform-free) inertial navigation Official claim[3] |
|---|
How it is marked
Used in
Geran family
Geran-2 2 recovered units
Records: gur-part-5094 ↗, gur-part-4764 ↗
Geran-3 1 recovered unit
Records: gur-part-4894 ↗
Inertial navigation — SADRA inertial navigation system, air-pressure sensing unit and power distribution unit, mirroring the Geran-2 layout[6]
Geran-4 1 recovered unit
Records: gur-part-5618 ↗
Inertial navigation — SADRA strapdown (platform-free) inertial navigation system[3]
Related parts
- Compatible with
- DISMAG V1.1 magnetic compass module Official claim[5]
Sources
- HUR War & Sanctions war-sanctions.gur.gov.ua/en/components/part/5094
- HUR War & Sanctions war-sanctions.gur.gov.ua/en/components/part/4764
- HUR War & Sanctions war-sanctions.gur.gov.ua/en/page-geran-4
- HUR War & Sanctions war-sanctions.gur.gov.ua/en/components/part/5142
- Interfax-Ukraine en.interfax.com.ua/news/general/1214324-amp.html
- Euromaidan Press euromaidanpress.com/?p=376974
Last checked 2026-10-19.